:root{--bg-1:#edf2eb;--bg-2:#f6f8f2;--text:#4f4a47;--heading:#2f5d50;--accent:#7da48c;--accent-dark:#254a40;--surface:#fff;--shadow:0 18px 45px rgba(74,54,44,.11);--radius:28px;--max:980px}
*{box-sizing:border-box}
body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--text);background:linear-gradient(180deg,var(--bg-1),var(--bg-2));line-height:1.9}
a{text-decoration:none;color:inherit}
.container{width:min(var(--max),calc(100% - 32px));margin:0 auto}
.header{position:sticky;top:0;z-index:10;background:rgba(255,248,244,.92);backdrop-filter:blur(12px);border-bottom:1px solid rgba(125,164,140,.15)}
.header-inner{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.logo{font-size:24px;font-weight:700;color:var(--heading)}
.nav{display:flex;gap:12px;flex-wrap:wrap}
.nav a{padding:10px 14px;border-radius:999px;font-weight:500;color:var(--heading)}
.nav a:hover{background:rgba(125,164,140,.12)}
.nav .cta{background:var(--heading);color:#fff}
.hero{padding:86px 0 54px;text-align:center}
.badge{display:inline-block;padding:9px 16px;border-radius:999px;background:#fff;box-shadow:var(--shadow);color:var(--heading);font-weight:600;margin-bottom:20px}
h1{margin:0 0 22px;font-size:clamp(34px,5vw,62px);line-height:1.12;color:var(--heading)}
.lead{font-size:18px;max-width:820px;margin:0 auto 28px}
.hero-img{width:100%;height:420px;object-fit:cover;border-radius:32px;box-shadow:var(--shadow);background:#fff;margin-top:34px}
.article{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);padding:42px;margin-bottom:60px}
.article h2{color:var(--heading);font-size:clamp(26px,3vw,38px);line-height:1.25;margin:42px 0 16px}
.article h3{color:var(--heading);font-size:22px;margin:28px 0 10px}
.article p{margin:0 0 18px}
.article ul{padding-left:22px}
.article li{margin-bottom:10px}
.info-box{background:#f4f7f5;border-left:5px solid var(--accent);padding:22px;border-radius:18px;margin:28px 0}
.link-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:26px}
.link-card{background:#f6f8f2;border-radius:20px;padding:20px;box-shadow:0 8px 22px rgba(74,54,44,.07);border:1px solid rgba(125,164,140,.15)}
.link-card strong{display:block;color:var(--heading);margin-bottom:6px}
.cta-box{text-align:center;background:linear-gradient(135deg,#dfeee7,#fff);border-radius:30px;padding:42px 28px;box-shadow:var(--shadow);margin:50px 0 20px}
.btn{display:inline-flex;padding:15px 28px;border-radius:999px;background:var(--heading);color:#fff;font-weight:700;margin-top:18px}
.footer{padding:30px 20px;text-align:center;color:#857d78;font-size:14px}
@media(max-width:800px){.header-inner{flex-direction:column;padding:14px 0}.nav{justify-content:center}.article{padding:28px}.hero-img{height:280px}.link-grid{grid-template-columns:1fr}}

html{scroll-behavior:smooth;scroll-padding-top:130px}a:focus-visible{outline:3px solid #315d48;outline-offset:4px}.skip{position:absolute;top:-100px;left:16px;background:white;padding:12px;z-index:20}.skip:focus{top:12px}.article a:not(.btn):not(.link-card){color:#23543d;text-decoration:underline;text-underline-offset:3px}.meta,.breadcrumb{font-size:14px;color:#4b5c52}.breadcrumb{padding-top:20px}.hero{padding-top:40px}.hero-img{height:340px}.hero p{margin:0 auto 16px}.toc{background:#f0f5ed;padding:22px;border-radius:18px}.toc ol{margin-bottom:0}.article section{scroll-margin-top:140px}.table-wrap{overflow-x:auto;margin:28px 0}table{border-collapse:collapse;width:100%;font-size:15px}caption{text-align:left;font-weight:bold;padding-bottom:10px}td,th{border:1px solid #c6d4c8;padding:13px;text-align:left;vertical-align:top}thead{background:#e8efe4}.sources{font-size:15px}.sources li{overflow-wrap:anywhere}.article .cta-box h2{margin-top:0}.hero figure{margin:0}.hero figcaption{font-size:13px}.footer a{text-decoration:underline}.article .link-card{border:1px solid #b5c9b8}.btn:hover{background:#193f2d}.article p{overflow-wrap:break-word}.nav a{font-size:14px;padding:8px 10px}.header-inner{gap:10px}.logo{white-space:nowrap}@media(max-width:600px){.hero{padding:32px 0}.hero-img{height:220px}.article{padding:23px}.header{position:static}h1{font-size:34px}.meta{font-size:13px}.cta-box{padding:28px 18px}.btn{width:100%;justify-content:center;text-align:center}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}@media print{.header,.toc,.btn,.skip{display:none}body{background:white;color:black}.article{box-shadow:none;padding:0}.hero-img{height:200px}.hero{padding:20px 0}h1{font-size:26pt}.cta-box{box-shadow:none}a{color:black}}

.workbook{counter-reset:step}.workbook h3{border-top:1px solid #d2ddcc;padding-top:25px}.workbook dl{margin:12px 0 28px}.workbook dt{font-weight:700;color:#254a40}.workbook dd{margin:4px 0 16px}.article .sources a{overflow-wrap:anywhere}.article .link-card{display:block}.article .link-card span{font-size:14px;color:#526457}.hero figure{margin:0}.article .toc li{margin-bottom:6px}.article h2{scroll-margin-top:150px}